Hardware accessories purchase skills teach you how to improve the performance of doors and windows
Hardware accessories: Doors and windows rely on hardware accessories to complete the opening and closing functions. It is the most easily worn and continuously active part of building doors and windows. Its functional effectiveness not only directly leads to safety problems, but also affects the insulation performance and watertightness of building doors and windows. Sex and airtightness. Without high-performance hardware accessories as guarantees, it is impossible to produce high-performance energy-saving doors and windows. Door and window hardware accessories include: handle, sliding support, support gear, handle, window lock, pulley and so on. For the casement window, classification according to the sealing performance can be roughly divided into two categories: multi-point hardware and single-point hardware. The lock points and lock seats of the multi-spot hardware are distributed around the entire door and window; when the doors and windows are locked, the lock points and the lock seats are firmly buckled together and cooperate with the hinges or the slide stays to jointly generate a strong seal pressing force. The sealing strip is elastically deformed so as to provide sufficient sealing performance for the door and window, so that the window sash and the window frame are integrated; and the single-spot sealing performance is relatively poor. Therefore, the use of multiple locks and window locks can greatly reduce the deformation of the door and window sash and improve the sealing performance. For other accessories, sliding hinges should be made of stainless steel. For sliding windows with a width of more than 1 meter, or doors with double glass installation, double pulleys or rolling pulleys should be used.
Optimize the sectional structure of the door and window frame profile. If there is no corresponding structural cooperation after the emergence of new materials, its role will be limited. The same material used in the structure is different, the difference in performance is very large, such as the use of multi-cavity heat insulation box, sealed with multiple seals and glass, accessories supporting, so that the K value significantly reduced.
From this, it can be seen that to increase the thermal resistance of the frame, it is necessary to increase the width of the heat insulation strip or the thickness of the heat insulation core connecting the inner and outer aluminum frames. In order to make the frame section compact, according to the principle of heat flow length, under the same width of the heat insulation strip, it can be designed as a “bow†shape. Since the length of the heat flow increases, the thermal resistance R is also increased, so that the K value is further reduced.
Multi-cavity heat insulation strip design was adopted to reduce the K value. Although widening the insulation strip can effectively reduce the K value, it can only be appropriately widened. If it is added too much, it will result in a structure that is not compact, and measures must be sought to increase the thermal resistance. According to the principle of heat conduction, the thermally conductive surface can be designed as a superimposed multi-cavity to increase the thermal resistance.
Widening the insulation strip filled with foam material and matching with a multi-head chamber seal to further reduce the K value. In order to lower the K value step by step, the heat insulation strips can be widened, and the foamed material can be filled. The multi-headed seal is used to form the cavity to match the performance.
Hardware Fittings Knowledge Materials Doors & Windows Window Glass Stainless Steel Glass Doors
Why are steel structure warehouse popular? How practical is it?
Many storage centers and large manufacturers are building steel structure warehouses. As long as there is a suitable location, then design and construction can be done directly. The construction of such warehouses is convenient and the cost is also very favorable. But why are such warehouses popular? How about practicality?
Fast construction
The warehousing industry must still have to race against time, especially some large warehousing centers have a lot of goods, and the sooner the warehouse is built, the better. The construction of the steel structure warehouse is very simple. It only needs to do a good job in the basic design, and the construction and use of the warehouse can be completed immediately, and it will not affect the later work. Moreover, all parts are prefabricated in advance, and the manufacturer will also carry out standardized production and processing. The processing progress is guaranteed, which can reduce the investment in human and financial resources, and the cost performance is also guaranteed.
Strong warehouse stability
The steel structure warehouse can be used for a long time, its stability is also guaranteed, and it is flexible to use, and it is also very convenient for daily construction and dismantling. Many manufacturers are more concerned about the stability of the warehouse, so long-term use is also guaranteed. In fact, the stability of Industrial Steel Buildings is also good, and the thickness of the steel plate is large, the weight is light, and the practicality is also guaranteed. The steel structure can withstand some bad weather, the stability is guaranteed, and the long-term use is also guaranteed.
large internal space
In order to effectively improve the profit margin of the warehouse, this kind of warehouse is also very worth choosing, because it does not use other columns for support inside, so the usable area inside the warehouse is also very large. In this way, the space of the warehouse can be fully utilized, the storage requirements of the warehouse can also be met, and the overall profit margin of the warehouse can be improved.
Excellent environmental performance
The reason why everyone is recommended to use steel structure warehouses is because such materials can be used repeatedly and the construction cost is low. Even if the warehouse is not used later, it can also be disassembled. Steel structure materials can be reused many times. Yes, there will be no construction waste, and it can also play a good role in energy saving and environmental protection.
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Henan Jinming Metal Material Co., Ltd. , https://www.hnjmsteel.com